baber/WOPTO huggingface dataset:
Patent GB-229382-A (GB)
Title: Improvements in loud speakers
IPC: H04R15/00
Filed: 1923-11-19
Abstract: 229,382. Round, H. J. Nov. 19, 1923. Diaphragms not associated with tone-arms. - A covering of paper, silk, or the like is mounted upon an umbrella-like structure consisting of radial ribs C and stretchers D, and the stick A is vibrated longitudinally for the production of sound. A needle inserted in the stick at right-angles thereto may be actuated by a gramo phone record. The umbrella may be supported by a rubber or other elastic gripping device which will hold it without impairing its longitudinal motion. The stretchers may be on the convex side of the structure. Two or even more sets of ribs and stretchers may be employed with a single stick, and the ribs in the different sets may 'be of different lengths.
Patent GB-774358-A (GB)
Title: Method of producing ferrites
IPC: C04B35/26
Filed: 1955-10-14
Abstract: 774,358. Magnetic compositions. STANDARD TELEPHONES & CABLES, Ltd. Oct. 14, 1955 [Oct. 19, 1954], No. 29342/55. Drawings to Specification. Class 38 (2). Manganese zinc ferrite of high permeability is made by grinding mixed oxides in a porcelain ball mill with water, drying, sintering at 1050 C. for 40 minutes in air, regrinding and resintering the product, washing to remove impurities, compressing, sintering at 1300‹ C. for one hour in a sealed furnace, cooling to 650‹ C. and quenching in air. The washing may be with repeated applications of boiling distilled water, to which may be added sodium chloride, ammonium acetate or other substances which aid the cleaning. This washing is sufficiently effective in removing the impurities to enable inexpensive oxides of commercial quality containing at least 2 per cent of impurities to be used as starting materials.
Patent GB-834946-A (GB)
Title: Improvements in or relating to metal-bonded graphite
IPC: C22C32/00
Filed: 1957-09-19
Abstract: A sintered, metal-bonded graphite composition contains, as the bonding metal, at least one of the group consisting of iron, cobalt, nickel and copper, alloyed with at least one of the group consisting of magnesium, calcium, barium, strontium and beryllium. The alloying metal is present in such an amount that, when sintering the composition at temperatures above the melting point of the metals involved, molten metal is prevented from sweating out of the compact. In examples, compacts are made of iron powder, graphite powder, and calcium in the form of calcium silicide powder, the calcium silicide forming between 0,75% and 1,5% by weight of the compacts, the total bonding metal content being from 10% to 70% by volume of the compacts.  The compacts were sintered for one hour at 2300 DEG F in vacuo.  Where calcium metal is used it may form 0,25% to 5% by weight of bonding metal.
Patent GB-1278594-A (GB)
Title: Holographic system having an improved signal-to-noise ratio
Inventor: GREENAWAY DAVID LESLIE
IPC: G03H1/04
Filed: 1968-06-20
Abstract: 1278594 Holography R C A CORPORATION 10 Sept 1969 [20 June 1968] 29582/68 Heading G2J  Signal-to-noise ratio of holograms is improved by increasing the proportion of the object beam polarized parallel to the reference beam and decreasing the proportion of the object beam polarized orthogonal to the reference beam. In one embodiment a reference beam 16 of plane polarized light is expanded to form a beam 20 and illuminates a hologram plate 22. An object beam 18 from the same light source is passed through a diffuser 28 to render it randomly polarized and then through a linear polarizer 30 to pass substantially only that portion polarized parallel to the reference beam 20 thereby cutting out that portion of the beam which carries only noise. The beam is then passed through a transparency and a hologram 22 is formed with improved signal-to-noise ratio. In an alternative embodiment the object beam directly illuminates an object without either diffuser or linear polarizer, but a quarter-wave plate oriented at 45 degrees to the plane of polarization of the reference beam is introduced into that latters' path to circularly polarize the reference beam. If the object has a plane polarizing effect upon an incident beam then a coherent light source forming randomly polarized beams may be used.
Patent GB-783034-A (GB)
Title: Improvements in or relating to foamed polystyrene
IPC: C08J9/00
Filed: 1955-10-18
Abstract: Foamed polystyrene is prepared by extruding at 280 DEG  to 450 DEG  F a composition of polystyrene particles with four and a half to nine per cent of an aliphatic hydrocarbon of boiling range 30-90 DEG  C., homogeneously admixed with a carbon dioxide-liberating agent and an organic acid having at least 3.0 milli-equivalents of acidic hydrogen per gram, an acid salt or boric acid in an amount to produce upon reaction a total of from one-tenth to five per cent, based on the polystyrene particles containing the aliphatic hydrocarbon, of water and carbon dioxide.  The polystyrene may be of the high impact type, i.e. containing elastomers.  The hydrocarbon may be petroleum ether, particularly the pentane and/or hexane fractions.  A number of acids is listed.  The carbon dioxide-liberating agent may be a carbonate or bicarbonate of an alkaline earth metal.  The products may have a density of up to 20 lbs. per cubic foot.  Flame-retardant products may be produced by addition of highly halogenated non-volatile hydrocarbons and antimony trioxide.  Specification 777,384 is referred to.
Patent GB-1182110-A (GB)
Title: Competitive recreational boat for flooding similar boats or being flooded itself.
Inventor: DUBERY JAMES WILLIAM
IPC: A63B67/00
Filed: 1967-06-28
Abstract: 1,182,110. Amusement apparatus. J. W. DUBERY. 5 July, 1967 [28 June, 1967], No. 29729/67. Heading A6M. An open boat 1 is fitted with a pump 4 having its inlet 6 connected to a two-way intake through which water may be drawn from outside the boat or from the bilges of the boat, the pump having its outlet 10 connected to a swivel mounted nozzle 11 through which water delivered by the pump may be directed in a jet at a similar boat. The two way intake may be in the form of a valve. The pump may be operated by a pedal rocker 5. Seats 12 and 13 may be provided, seat 12 being fixed in the stern for the propelling operator, and seat 13 for the pump operator is disposed rearwardly of the pump and is slidable. The boat is provided with buoyancy compartments 2 and 3 so that it is unsinkable.
Patent GB-744282-A (GB)
Title: Fluid pressure valves for transportable gas containers
Inventor: PLUMLEY JAMES THEODORE
IPC: F16K31/524
Filed: 1953-10-28
Abstract: 744,282. Valves. RUBERY, OWEN & CO., Ltd. Sept. 20, 1954 [Oct. 28, 1953], No. 29759/53. Class 135. A valve for portable gas containers comprises a spring-closed closure member 11 coacting with a downwardly facing seating 15 and an actuating plunger 25, 44 acted upon by a cam lever 40, the cam of which has stop portions 54 at its ends. A sealing diaphragm 42 is interposed between the two parts of the plunger. A protecting cover 56 may be screwed to a bung 58 into which the body of the valve is screwed. A filter 31 may be fitted in the inlet.
Patent GB-171389-A (GB)
Title: Improvements relating to means for disengaging from bundles of filiform bodies, one of these bodies, especially for the purpose of "drawing" hair in view of making "transformations"
IPC: A41G3/00
Filed: 1921-11-08
Abstract: 171,389. Bourgeois, A. Nov. 9, 1920, [Convention date]. Pile fabrics.-A machine for successively withdrawing single hairs, threads, fibres, &c. from bundles of the same, specially applicable to the making of transformations, comprises a frame d, Figs. 1 and 2, with mechanism for traversing the same in two directions at right-angles. The bundle c of hair &c. is secured behind a piece of silk gauze a which is sewn to a piece of tulle b stretched on the frame d. A hook e is thrust into the bundle of hair and withdrawn, pulling the hairs one at a time through the gauze while the frame d is traversed. The Specification, as open to inspection under Sect. 91 (3) (a), also describes the modified machine shown in Fig. 1 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-684689-A (GB)
Title: Synthetic substances of the polysaccharide type
Inventor: STACEY MAURICE
IPC: C08B37/00
Filed: 1949-11-22
Abstract: Substances of the polysaccharide type are prepared by heating an alkyl or aralkyl furanoside of a 2-deoxyaldose to a temperature at which the corresponding alkanol or aralkanol is evolved and a condensation reaction sets in.  The products are hard glassy polymers having a polysaccharide structure consisting of either 2-deoxy-pentofuranose units linked together through C1 and C5 or 2-deoxyhexofuranose units linked together through C1 and C6.  They may be baked in high vacuum to increase the molecular weight.  In an example, 2 - deoxy - D - galactose is treated with hydrogen chloride in methanol to produce a b -methyl-2-deoxy-D-galactofuranoside which is then polymerized by slowly heating.  The course of the reaction is followed polarimetrically, the more positive the rotation, the greater the molecular weight.  In another example, 2-deoxy-D-ribose is similarly treated.  Examples are also given in which 2-deoxy-D-galactose and 2-deoxy-L-ribose are treated with benzyl alcohol and hydrogen chloride and the products polymerized by heating in a vacuum.ALSO:Substances of the polysaccharide type are prepared by heating an alkyl or aralkyl furanoside of a 2-deoxyaldose to a temperature at which the corresponding alkanol or aralkanol is evolved and a condensation reaction sets in.  The products are hard glassy polymers having a polysaccharide structure consisting of either 2-deoxy-pentofuranose units linked together through C1 and C5 or 2-deoxy-hexofuranose units linked together through C1 and C6. They may be baked in high vacuum to increase the molecular weight. In an example, 2-deoxy-D-galactose is treated with hydrogen chloride in methanol to produce a b -methyl-2-deoxy-D-galactofuranoside which is then polymerized by slowly heating.  The course of the reaction is followed polarimetrically, the more positive the rotation, the greater the molecular weight.  In another example, 2-deoxy-D-ribose is similarly treated.  Examples are also given in which 2-deoxy-D-galactose and 2-deoxy-L-ribose are treated with benzyl alcohol and hydrogen chloride and the products polymerized by heating in a vacuum.
Patent GB-218915-A (GB)
Title: Improvements in cotton or like waste with lubricating oil
IPC: D06B3/00
Filed: 1923-11-27
Abstract: 218,915. Rogers, F. H., '(American Laundry Machinery Co.). Nov. 27, 1923. Lubricants for machinery.-Journal-box waste is impregnated with lubricating oil by repeatedly immersing and removing the waste in loose form, as by treatment in the known washing machine shown and comprising a perforated cylinder 3 which is fitted with baffles 5 and is rotatable within a bath 1 heated by steam pipes 2.
Patent GB-159333-A (GB)
Title: Improvements in laminated springs
IPC: F16F3/02
Filed: 1919-12-01
Abstract: 159,333. Brooks, B., and Brooks & Co., Ltd., J. B. Dec. 1, 1919. Laminar springs; straight bars and wires arranged for torsion.-A spring having superimposed laminations of varying length has each of the laminations divided longitudinally. In one form, a semi-elliptic spring comprises spring wires 1, Figs. 2 and 3, passing through holes in a metal block 2 and rigidly secured thereto. The extremities of the wires 1 of each lamination are secured within holes in metal plates or blocks 3 which may space apart the wires of the longer laminations as shown in Fig. 6, or may be in the form of cross-bars 3, Fig. 9, with arms 4 serving to prevent lateral displacement of the upper laminations. In another arrangement of the wires, a spring reinforcing-plate 5, Fig. 11, is fitted above them, or a corrugated band 3, Fig. 12, may encircle them. Wires 1, 6, Fig. 13, of different sizes may be used to make a lamination. Instead of ordinary wires, flat strips, stranded wires, or rods of square section diagonally arranged may be used. The laminations may be circular and concentric, the wires 1, Fig. 16, being bound by bands 3 or threaded through plates. This form is particularly applicable to torsion springs.
Patent GB-808626-A (GB)
Title: Improvements in and relating to cop winders
Inventor: MACKIE JOHN KAY PRINGLE
IPC: B65H54/14
Filed: 1955-10-19
Abstract: 808,626. Winding yarns. MACKIE & SONS Ltd., J. Sept. 24, 1956 [Oct. 19, 1955], No. 29880/55. Class 120(2) In an automatic cop winder successive cops are wound on one and the same spindle 10, the length of spindle within the cop at the end of the winding is substantially shorter than the length of the cop, the spindles are axially stationary during winding and rotationally stationary during stripping of the cop, the cop is loaded during its formation by a buttress 26 which is displaced away from the cop forming means 16 as the cop increases in length and the cop is automatically stripped from its spindle on reaching the desired length and the yarn connecting it to the source of supply is severed and the end is brought into engagement with the spindle by intercepting means. In the arrangement shown yarn is fed via a reciprocating thread guide 14 to the spindle 10, which is short in comparison with the cops built on it, and the nose of the cop is formed by cone 16. As the cop grows in length it pushes the buttress 26 carried by bracket 31, downwards against the action of a weight 33. When the cop has reached the 'desired length the bracket 28 is released by the stop member 34 and swings into the dotted line position. The cone 16 then descends and strips the cop off the spindle. The cop falls on to a step 20 which tilts it and brings the yarn 22 into engagement with a severing device 24. The buttress 28 is then returned to its former position and in doing so one of a number of spurs 24 thereon picks up the yarn and cause it to be wound on the spindle thus starting another cop. The stripping of the crop can alternatively be done by retracting the spindle.
Patent GB-370406-A (GB)
Title: Improvements in and relating to hydraulic transmission mechanism
IPC: F16H43/00
Filed: 1930-10-06
Abstract: 370,406. Hydraulic transmission of power. BEDFORD, J, Lucerne, Old Bedford Road, and PARK, M. C., 54, Havelock Road, both in Luton. Oct. 6, 1930, No. 29892. [Class 69 (ii).] In hydraulic transmission gears embodying a reciprocating pump and a system of vanes associated with a stationary member as described in Specification 352,034, the pump is operated by a tilting or swash plate, and more than one set of vanes may be provided. In one form, the driven shaft 2, Fig. 1, carries a cylinder block 12, the pistons 10 of alternate cylinders being connected to inner and outer rings 7, 8 mounted on inner and outer tiltable plates 5, 6, trunnioned at 4 to the driving shaft 1. The rings 7, 8 are universally connected to each other and the cylinder block by gimbal rings 14, 15 ; in each pair of elements, the outer ring need not be split, being provided with an axial recess b, Fig. 5, so that the ring c may be inserted as shown and then turned through a right-angle into its working position. The cylinders have inlet ports 38, Fig. 2, with non-return valves, and are adapted to deliver through nozzles 36a, 36b under the control of valves 37. Outside the nozzles are vane rings; each with two sets of vanes, the inner and outer rings being carried by the casing, and the intermediate by the cylinder block. Simultaneous adjustment of the plates 5, 6 in opposite directions is effected by movement of a pivoted plate 24, a cam slot 23 therein acting on a pin 22 to move keys 19 axially ; members 25, 26 on the keys act on the plates 6, and the movement of the keys acts to rotate cams 29 acting on the plates 5. Another cam slot 64 controls the position of the valves 37, and a spindle 43 determines which set of vanes is to be operative, to secure forward or reverse drive as desired. In another form, the driving shaft 1 carries the cylinder block, the pistons are operated from the rings 7, 8, by gudgeon pins 67, Fig. 7, the plates 5, 6 are adjusted by links 71, and the cylinders have non-return inlet and outlet valves 74, 75. Means are also provided for securing a forward drive by clutching the vane ring 40 to the shaft 2, and the vane ring 41 to the stationary vane ring 42, and for securing a reverse drive by clutching the ring 41 to the shaft 2 and the ring 40 to the stationary ring. In a third form provided with mechanical reversing gear, the plates 5, 6 are of fixed inclination, the ends of the cylinders are provided with slidable valves, and radial vanes 111, Fig. 10, of adjustable inclination are employed. In another form having mechanical reversing gear, the pistons are operated through bell-crank levers 137, Fig. 15, from the plates 5, 6, which are interconnected and adjustable by an axially slidable rod 145, which also serves to control outlet valves 37.
Patent GB-1416141-A (GB)
Title: Acupoint device
IPC: A61B5/053
Filed: 1972-06-26
Abstract: 1416141 Electrical treatment and diagnostic apparatus P GILHEAD 1 Feb 1973 [4 Feb 1972 26 June 1972] 5302/72 and 29902/72 Headings ASK and A5R [Also in Division Gl] A device for diagnosing and/or treating human ailments comprises a casing 1 containing battery terminals, a first electrode 2 which can be moved over the patient's body, a second electrode formed by at least part of the casing or attached thereto, and current sensitive means mounted in or on the casing, connected in circuit with the supply means and electrodes, and including means for providing an indication of any relatively low resistance paths in an external circuit between the electrodes e.g. acupuncture points. The casing is held by the patient and the electrode 2 is moved over the body, the presence of any low resistance path indicating an ailment which may be treated by increasing the pressure on the body by electrode 2 to thereby increase current flow through the body. As shown, the casing is cylindrical and made of stainless steel, the electrode 2 being mounted in an insulating bushing 3 and a transparent or translucent member 4 which has a socket 14 containing a filament lamp or light emitting diode. A 9v. battery 6 is connected to the casing via an end cap 5 and to the electrode 2 and a d.c. transisterised amplifier 12, Fig. 2 (not shown), mounted on a circuit board 13, via a switching mechanism 9 operable by a lever 10 and insulating member 11. When the electrode 2 reaches a low resistance point, the lamp or diode glows brighter to provide the indication. In modifications, the circuitry can contain a potentiometer for adjusting the sensitivity, and may include an oscillator for applying an alternating current to the body. The battery 6 may be replaced by a transformer connectible to the mains. The electrodes may be made of silver or gold.
Patent GB-280717-A (GB)
Title: Improvements in or relating to typewriting machines
IPC: B41J19/54
Filed: 1926-11-27
Abstract: 280,717. Barr, J. H., and Barr-Morse Corporation. Nov. 27, 1926. Type - lever machines; letter - spacing mechanism.-A universal bail operated by the type-levers is mounted on substantially straight interconnected levers lying in a plane close to and approximately parallel to the plane of the universal bail, the mounting causing the universal bail to receive uniform displacement at all points without flexing when struck by any of the typelevers ; the compactness of the mounting renders it suitable for a portable machine. The universal bail 13 shown in the Figure is arranged in a slot 14 at the rear of the type-lever segment 1 and is mounted at each side on levers 22, 25 which are pivoted on brackets 19 on the rear of the segment and are pivotally connected to lugs 16. 18 on the universal bail, the levers 25 having pins 28 entering holes in the levers 22. The holes may be countersunk from both sides to provide knife-edges for engaging the pins. The two levers 25 are united by one or more cross-bars 31. The universal bail abuts on a returning-spring which is seated in a bracket 2 on the segment and is adjustable by a screw 34. An ink-ribbon vibrator may be disposediin the space between the levers 25. In some cases a single lever replaces the levers 25. Case-shift mechanism.-The type-lever segment 1 is supported on upper and lower rocking arms, the lower arms being pivoted to the depending bracket 2 on the segment. The bracket has a recess which engages an abutment on the framework to limit the movements of the segment.
Patent GB-1020511-A (GB)
Title: Vehicle luggage carrier
IPC: B60R9/055
Filed: 1962-08-04
Abstract: 1,020,511. Vehicle roof racks. E. S. BUCKLEY. July 22, 1963 [Aug. 4, 1962], No. 30102/62. Heading B7J. A vehicle roof luggage rack comprises a closed container 11, Figs. 1, 2 and 3, provided with a pair of closures 12 hinged at 15 to the top of the container, a sponge rubber sealing member 14 being provided around each of the openings, the body of the container also having a channel 13 around the top and sides of each opening outside the sealing member and partly overlapped by the closure 12. The container, which may be made of fibre glass, is provided in its bottom with reinforcing ribs and has moulded therein, rigid elements, from which extend feet 17. Mild steel reinforcing strips 20 are moulded into the closures 12.
Patent GB-870078-A (GB)
Title: A machine for the production of hollow articles of thermoplastic material
IPC: B29C49/42
Filed: 1957-09-25
Abstract: 870,078. Moulding hollow articles. AASHEIM, J., and ROM, H., [trading as NORSK EXTRUDING]. Sept. 25, 1957, No. 30149/57. Class 87(2). A moulding machine for making thermoplastic hollow articles comprises at least two moulding stations wherein the articles are moulded by fluid pressure between movable mould sections, the moulding stations being so connected to each other, to control means for supplying the thermoplastic material and to the pressurised fluid that the moulding processes at the moulding stations are effected with a relative time displacement. An extrusion screw 1 supplies material through a valve 3 and nozzles 4 to extrude tubes 6 between reciprocating moulds Ia, Ib: IIa, IIb, moved by pistons 9, 10, 11 actuated by compressed air supplied by conduits 12, 13 so arranged that the moulds operate successively and movement of the mould half IIa actuates the valve 3 to direct the material to successive nozzles. The extruded tube is expanded by fluid pressure through conduits 8 and the tube may be closed by a cutting operation at the conclusion of the moulding operation.
Patent GB-255707-A (GB)
Title: Structural concrete beams
IPC: E04C3/20
Filed: 1925-11-30
Abstract: 255,707. Dehn, F. B., (R. C. Products Co.). Nov. 30, 1925. Retaining-walls.-Concrete beams for use as headers interlocking with stretcher blocks in retaining walls are formed of I-section with solid ends 10 and with projections 4 on one or both flanges which engage the grooved wall blocks 7 and permit the required flexibility in the structure. The web 11 is strengthened adjacent to the part 10 by a tapered portion 12.